The last scene from the game before the credits roll when you beat the game with Mega Man. Wily is significantly easier to defeat with Mega Man (notice the full health bar!), but his ending is cheesier than the ending with Bass.

Roll:
Welcome back!

Beat:
...

Rush:
Bark!

Light:
Well done, Mega Man! What happened? Your face is pale.

Mega Man:
If I had fought any better... Maybe I could've beat King.

Light:
So that's it. Roll, bring the letter.

Roll:
This letter's for you.

Mega Man:
From who?

Roll:
Remember this mark?

Mega Man and Roll:
Let's read it together.

Mega Man,
I thought wrong about you. I should apologize to everyone I've treated badly. Until robots trust humans, we'll have to work for them. If I meet you again, let's be good friends.

King.

Mega Man:
King is alive!

Roll:
It'll be fun to see King in action.

This is the the "The End" screen after you've watched your character's ending. You get a nice thank you from Capcom, and you can see how many CDs you managed to collect during the course of the game.